Castor oil packs are amazing for relieving stress and fatigue, while improving and strengthening physical health. They promote blood circulation, reduce inflammation, regulate stool and cleanse your liver all while relaxing your joints and muscles. 3 layers of organic cotton flannel serged together to create our multi-use castor oil pack. Our pack can be folded up to the size you want or used as a large square giving you the flexibility to use it on your liver, joints, or any area you are looking for relief. Choose from a 12" x 18" or a 13" x 15".